Allow e.g. "-help -exportresults" as well as "-help exportresults".

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@7571 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/prism/PrismCL.java

@@ -2152,6 +2152,10 @@ public class PrismCL implements PrismModelListener
 	 */
 	private void printHelpSwitch(String sw)
 	{
+		// Remove "-" from start of switch, in case present (it shouldn't be really)
+		if (sw.charAt(0) == '-')
+			sw = sw.substring(1);
+		
 		// -const
 		if (sw.equals("const")) {
 			mainLog.println("Switch: -const <vals>\n");